## _get_commands (nil) : listref
#
# each Machine has its own list of Commands that should be
# executed in response to the user's input. this routine returns
# a reference to that list.
#
####
=head1 FUNCTIONS ....
=head2 C
each Machine has its own list of Commands that should be
executed in response to the user's input. this routine returns
a reference to that list.
=cut